Press.



E. H. ALVORD.

PRESS.

' APPLICATION FILED SEPT. 26, 1910. RENEWED 00T. 3, 1913- v Patented May 19, 1914;

7 SHEETS-SHEET 1.

attoznut COLUMBIA PLANGGRAPH Co.. WASHINGTON. D, c.

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E. H. ALVORD.

PRESS. APPLIOATION FILED SEPT. 2s, 1910. RBNEWED 00T. a, 191s.

1,097,157. Patented May 19, 1914.

7 SHEETS-SHEET 2.

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L//Mm/Q l @ttor/wup COLUMBIA PLANOBRAPH co.. WASHINGTON, n. C.

E. H. ALVORD.

PRESS.

APPLICATION FILED SEPT. 26, 1910. RENBWED 00T. 3. 1913.

'Patented'May 19, 1914.

7 SHEETS-SHEET 3.

@mi hwooeo coLuMnlA PLANOGRAPH c0.,w^SHxNG'mN. D. cv

E. H. ALVORD.

PRESS.

APPLICATION FILED SEPT. 26, 1910. MNBWBD 00T. a. 1913.

7 SHEETS-SHEET 4.

Patented May 19, 1914.

@l SL Eff @L @mm COLUMNA PLANOUIAPH 0.. WASHINUTDN. D C.

E. H. ALVORD.

. PRESS.

APPLICATION FILED SEPT. 26, 1910. RENBWED 00T. 3, 1913.

1111111111511 May 19, 1914.

COLUMBIA PLANOGRAPH co.. WASHINGTON, D. c.

E. H. ALVORD.

PRESS.

APPLICATION PILBDSBPT. ze, 1910. RBNEWBD 00T. s. 1913.

'1,0971 57 v Patented May 19,-1914.

'1 SHEETS-SHEET a.

. PRESS.

APPLIUATION FILED SEPT. ze, 1910. BBNBWBD 00123, 191s.

- Patented Mayisa, 1914.

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COLUMBIA PLANOORAPH C0" WASHINOTQN. D. C.

ELISHA H. ALVORD, 0F SEATTLE, WASHENGTON.

PRESS'.

noemer.

Specification of Letters atent.V

Patented May 19, 1914:.

Application filed September 25, 1910, Serial No. 583,971. Renewed October 3, 1913. Serial No. 793,252.

To al? trimm/15 may concern.'

lle. it known that I, lGLIsI-Ia H. ALvoRD, a citizen of the United States of America, and a resident of the city of Seattle, in the county of King and State of Vashington, have invented certain new and useful 1mprovenients in Presses, ofwhich the follow ing is a specification.

One object resides in a novel arrangement of press parts permitting of desired adjustment to open the press and adjust the product.

Another object resides in a novel provision for applying and controlling power whereby desired pressure can be applied to the material to be treated.

ri. further object is to provide for a variable control of power to operate the press under relatively low or high pressure or changing pressure, as may be desired.

still further object is to provide for variable time control of the cycle of operation. with particular reference to variations in the period or periods during which the power is applied.

Further objects and advantages will be set forth as the description progresses, and the features of novelty on which desire protection defined in the claims.

ln the accoinpanying drawings wherein similar reference characters designate corre- .spend ing parts throughout the several views: Figure l is a .sectional side elevation of a tluid operative, automatic time controlled press of the tilter type embodying features of my invention in such form as now preferred bv me, the parts being shown in rela.- ive prsition at the connnencement of a pressing operation. Fig. 2 is a side elevation with the press open and the product shown in adjusted position. Fig. il is a front end elevation with the feed hopper in partial section disclosing the presser for feeding material to the compression chamber. Fig. lis a fragmentary perspective of the hopper showing the presser expanded as iu a fee ling operation. Fig. 5 is a rear end elevation of the press. Fig. G is a longitudinal section of the pressure regulator of the pmver system. Fig. T is an end elevation of the `\.'ilnf;u';ing member or carrier together ith one of the master wheels for timing its renner-.tion with the controlling leversof the press Fig. S is a side elevation of the same tog ther with the Controlling levers, portions of some of the parts being broken away.

Fig. 9 is a fragmentary side elevation of the vibrating carrier with the same master wheel as in Fig. 'T shown in partial section and portions of the master wheel driving pawls broken away. Fig. 10 is an end elevation of the vibrating carrier with the master wheel and driving pa-wls removed and a portion of the auxiliary setting wheel broken away. Fig. 11 is a fragmentary section on line 11-11 of Fig. 9, showing the pawl and ratchet of the interruptor of the timing mechanism. Fig. 12 is a front elevation of the same master Wheel together with the auxiliary setting wheel, portions of the master wheel being broken away. Fig. 13 is a fragmentary section of the hub section of this master wheel. Fig. 141 is a rear elevation of t-he sleeve section of this master wheel. Fig. 15 is a section on line 15 of Fig. 1t. Fig. 16 a section on line 16 of Fig. 8 showing the power controlling lever and the catch and cam device for connecting the same with the vibrating carrier. Fig. 17 is a. detail of the power applying catch of the power controlling lever together with its cam. Fig. 18 is a further detail of this cam. Fig'. 1S) is a section of the catch on line 19 of Fig. 17. Fig. Q0 is a section on line 20 of Fig. 8 showing the controlling lever of the press opening and resetting mechanism and the catch and cam devices for connecting this lever with the vibrating carrier. Fig. Q1 is a similar section on line 21 of Fig. S showing the operating lever of the presser and the catch and cam for connecting the same with the vibrating carrier. Fig. 22 is a section on line of Fig. 8 showing the lever of the press charging valve and the catch and cani device for connecting this lever with the vibrating carrier to open the charging valve. Fig. JEl is a section on line 23 of Fig. S showing the lever of the product ejecting device and the catch and cam for connecting this lever with the vibrating carrier to advance the ejecting device. Fig. 2a is a fragmentary side elevation of the vibrar` ing carrier together with a substitute master wheel of modilied forni, the wheel being shown in vertical section. Fig. 25 is a fragmentary end elevation of the vibrating carrier Vith the substitute master wheel. Fig. S26 is a side elevation in broken section of the hub section of the substitute master wheel. Fig. 27 is a rear end elevation of the sleeve section of the same. Fig. is a section on line 2S of Fig. 2i', and Fig. 29 is a front elevaticn of the substitute master wheel in broken section together' with portions of the adjacent related parts.

The press proper comprises reciprocatory pressure members l, 2 secured to slide rods 1, and an intermediate pressing member 3 in the form of a trunk piston fitting in tubular li te sections a, 5, which are secured to a base et and provided with guide bosses, as af, 5 for the rods 1.

Member 2 is adapted to serve as an inwardly movable back pressure head for seetion 5, which constitutes the power chamber, while member 1 serves as an outwardly movable compression head for section a, and normally engages therewith to secure head 2 from backward movement, as clearly shown in Fig. 1.

The power system includes a power controller, a variable pressure regulatorand an intensiier which are suitably combined and connected for application of fluid in chamber either under a normal pressure or at an increased pressure as may be desired.

The controller comprises a double piston valve 6 connected by a link 9 with an adjust-ing lever 9 and slidably tting in a casing 6 which is provided with a port G for intake between the pistons of the valve. This casing is further provided with de-A livery ports 5, 7 which are arranged Vfor service in successive order by downward adjustments of valve G and connected, respectively, with power chamber 5 and the power regulator, as 7.

Regulator 7, which as shown, is in the form of an ordinary water pressure reducer, is connected at its delivery7 side with the low pressure cylinder of a hydraulic intensifier 8 whose high pressure cylinder is connected with a pipe S communicating with power chamber 5.

1n the primary application of fluid to power chamber 5 valve 6 is adjusted to direct fluid from port (3, which is connected with a suitable source of fluid supply under pressure, to port 5 for passage through its connecting pipe or passage 5, in which a back check is provided as designated in Fig. 1, to the chamber. As pipe 8 also communicates with chamber 5 the fluid finds passage through the pipe to the high pressure cylinder of intensifier 8 and serves to reset the intensifier piston Sa. T his piston during its backward movement, discharges the low pressure cylinder of the intensifier through the connecting passage 7 of regulator 7 and thence to discharge through the regulator and the connected port 7 of valve cas- 0 ing G as indicated by the arrows in Fig. l.

To increase the pressure in power chamber 5 valve G is adjusted downwardly to place port 7 in connection with intake port 6 and thereby direct fluid through regulator 7 to the low pressure end of the intensifier whose high pressure cylinder, being filled as heretofore described, contains a supply of fluid which is applied under action of piston 8a at an increased pressure through passage S to powei` chamber 5. The increase may be regulated if desired, by manipulating spring tension screw 7b of regulator 7, as will be readily understood.

Seated in a discharge passage 2 provided in head 2 is an inwardly movable wing valve 2 whose stem 20 is combined with a press opening and resetting mechanism including a collar 21 which is secured to th-e stem for engagement with head 2 to effect inward adjustment thereof following opening movement of valve 2.

Pivotally mounted on valve 2 is an angular catch 3 for coupling piston 8 to stem 20 for return movement in resetting the press. This catch is adapted for engagement with a cross pin 3 of piston 3 and yieldingly connected with a releasing rod 22 which is pivotally engaged with a lever 23 mounted on head 2. Lever 23 is connected with a slide bar 24 carried by head 2 and arranged for stopping engagement with the adjacent end of chamber 5 during the terminal part of the inward movementA of head 2 whereby catch 8 is thrown into position for engagement with pin 3 to connect piston 3 for reverse movement with said head.

Provision is made for adjusting bar 2drto throw catch 3 to a releasing position during the initial downward movement of valve from its closed position, indicated by dotted lines in Fig. 1. Such provision comprises a cam piece 25 which is secured to link stem 9 of valve 6 for engagement with the outer end of bar 24 when head 2 is in its normal position.

For opening and resetting the press, i. have shown an auxiliary fluid operative device comprising a piston 27 secured to stem 2O and mounted in a cylinder 2S having ports 28 common to both ingress and egress and provided with a double piston valve 29 which is connected with a lever 29 pivoted on cylinder 2S and connected by a link l0 with an operating lever l0.

Combined with compression chamber Ll is a rotary charging valve 40 connected with a hopper 41 and provided with a rock arm 40 which is connected by a link 11 with an operating lever 11. lrlounted in hopper 41 is an angular expansible presser #l2 com prising perforated plate sections 42, 412 provided with pintle lugs engaged with a pintle 112 whose end portions are slidably engaged in opposite channels 41 of a throat extension 411 of the hopper. in angle stop, as 42a, secured to one section i2 serves. to keep the sections apart during upward movement of the presser. in downward movement swing apart under resistance of the material in threat 41a and The sections i2- bear in angular relation against opposite walls of the throat, as indicated in Fig. 4, while the perforations, as 42b of the sections provide passages through which material may return from the bed under pressure and thereby relieve the presser operating mechanism. Pintle 42 of the presser is connected by a link 43 with a vertically movable lever 43 which is pivoted on an eX- tension 41h of hopper 41 and connected by a link 12 with an operating lever 12.

44 indicates an ejector conveniently in the form of an inverted T-shaped member whose stem portion is slidably engaged in guide bosses 44 on throat 41a for movement of the head portion transversely of the path of the product of the press at the outer end of chamber 4. This ejector is suspended on links 45, 45 carried by opposite arms of a bifurcated lever 46 which is supported in common with lever 43 on hopper extension 41b and connected by a link 13 with an operating lever 18.

The levers 9, 10, 11, 12 and 13 are mounted for independent angular movement on a' cro-ss fulcrum 50, fixed to bracket stands 51 of chamber 5 and constituting a bearing shaft for the vibrating carrier 52 which comprisesa rectangular cross frame 53 provided with arms 54, 54J journaled on fulcrum 50. Vibratory lmovement is imparted to carrier 52 from a spur gear wheel 55, journaled on stands 51 of chamber 4, through the medium of a rod 56 which is connected with a crank pin on wheel and pivoted to a downward extension of arm 54 of the carrier. Wheel 55 meshes with a pinion 55 fixed to a shaft 57 which is journaled on chamber 4 and provided with a fixed pulley 57 driven in any convenient manner to impart continuous rotation to wheel 55 in the direction indicated by the arrows in Figs. 1 and 2.

ik system of spring pressed push catches and controlling cams are provided on carrier 52 for connecting it with the levers 9, 10, 11, 12 and 13 for active operation of these levers in proper order by and during movement of the carrier. The various lever catches are mounted for independent adjustment on a common pivot 58 secured to the carrier, while their controlling cams are fixed to respective shafts 59, 60 which are journaled on the carrier and connected by a pair of spur pinions 60 for simultaneous angular adjustment to advance the controlling cams for the release and retraction of their respective lever catches.

For lever 9 oppositely disposed catches G1, 62 are mounted on pivot 5S, see Figs. 16 to 19, under control of cams 61, 62 which are secured= respectively, to the shafts 59, GO. Cam 61', which is mainly of circular form, has a depressed peripheral bearing surface b for a shoulder b of catch 61 which is further provided with a projecting lug fr normally bearing against the cam so as to ride into a suitable clearance space therein to release the catch for application of shoulder 5, first to the main surface a of the cam and then to its surface Z), as the cam is adjusted and to thereby set the catch in different positions whereby it is presented in opposing relation to stepped shoulders L, H of lever 9 in a successive manner. The shoulders L, H are suitably spaced in the path of carrier 52 for initial and secondary movements of lever 9 by respective applications of catch 61 in its two positions of release to first adjust valve 6 from closed position to place its intake port G in communication with delivery port 5, as indicated in Fig. 1, and thereby direct fluid under normal pressure to power chamber 5 as heretofore described and subsequent-ly eect a continued adjustment of the valve to place port G in communication with port 7 and thereby direct fluid to regulator 7 for application in intensifier S to effect an increase of pressure in the power chamber, as previously described.

latch ($2 serves to connect carrier 52 with lever 9 for return of the lever to effect a complete closing movement of valve G and also serves as a return catch for lever 10 to operate the same, simultaneously with lever 9, for adjusting valve 29 to direct fluid from its intake 29" which is connected with a suitable source of fluid supply under pressure, to the port 28 leading to the back end of cylinder 28. In this connection it will be observed that levers 9, 10 are provided, respectively, with shoulders C, 0 while cam 62 isprovided with a depression which in the cycle of operation of shaft G() is presented as will be later understood to a bearing lug of catch 62 during a rearward stroke of carrier 52, thereby releasing the catch for engagement with the shoulders C, O upon the carriers return stroke, which stroke. therefore effects an upward movement of valve G to its closed position, as shown in Fig. 2 and makes an application of fluid to piston 27 for its movement to open the press. This application of fluid to piston 27 effects through medium of rod 20 an inward or opening movement of discharge valve 2 and applies collar 21 to the back pressure head 2 which is then moved into power chamber 5 under continued action of piston 27 and moves the press head 1 outwardly from the compression chamber 4 through medium of the rods 1. During this operation the body of fluid in chamber 5 finds outlet through passage 2aN and head 2 is applied to the trunk flange 8a of piston 3 to advance the piston until the product of compression, as T, is adjusted into the path of ejector 44 when a stop, as 3b provided in the path of flange 3,

checks further movement of the o-perating piston QT.

Catch 3', which in the meantime has been lowered by movement of head 2 on rod 24: effecting' an angular` adjustment of lever 23 to the position shown in Fig. 2, is now in position to engage with pin 3 upon backward movement of head 2. This movement is effected, following a reciprocation of ejector 4,1, by application of fluid in the forward end of cylinder QS incidental to a reverse movement of lever 10, as will be later understood.

'The ejector operating lever 13, see Fig. 23, is provided with opposite shoulders 15,12 the latter of which faces the rear side of carrier frame to be engaged thereby for return movement of the lever, while shoulder 141 lies in the path of the carrier for engagement by a forward push catch G3 on pivot 58 whose controlling` cam (33 is secured to shaft G to follow cam 62 in the cycle o-f operation of the setting shafts 59, GO for the release of catch GB subsequently to the release of catch (SQ. The. release of catch 63 is effected as will be later understood, during arearward stroke of the carrier and it is therefore applied to shoulder E and pushes lever 13 for active operation of ejector 44 during the succeeding' stroke of the carrier.

The press closing and resetting operation, which now effected by reverse movement of lever 10, is followed by opening and closing movements of the. charging valve 40 and a reciprocation of presser in proper relative time to pass a charge of material into chamber 4 from hopper 41.

(it indicates a rearward push catch for lever mounted'on pivot 5S, see Fig. 20, and engaging a controlling cam G4 secured on shaft 59 to follow x.am (33. The release of catch oil. is effected, by further adjustment of shafts 59, '30, during the advance movement of ejector lever 13 just described so that the catch will be applied during the succeedingrearward stroke of the carrier to a. shoulder O of lever 10 and reverse the lever to the position shown in Fig. 20, during the return of ejector lever 13 by the carrier. to theposition shown in Fig. Q3. This reverse .movement of lever 10 shifts valve 2T to the position shown in Fig. 1 and thereby places its inlet Q9 in communication with the front end of cylinder 28 wherein piston 2T is now resting in advanced position, as indicated in Fig. 2. This application of liuid in cylinder moves piston 2T rearwardly with valve stem 2O first drawing valve 2 to its seat and catch 3 against pin 23"' and then retracting the heads 1, 2 and piston 3 to their normal positions, as shown in Fig. 1.

During the above described return movement of lever 10 a forward push catch 65,

gaging a. controlling cam G5 secured to shaft 60 is released, by further adjustment of shafts 59, 60, for application to a should-er V of lever 11 to push said lever for opening movement of the press charging valve during the succeeding forward stroke of the carrier. During this forward stroke a rearward push catch G6, see Fig. 21, mounted on pivot 5S and engaging a controlling cam G6 secured to shaft 59 is released, by further adjustment of setting shafts 59, GO, for application upon the return stroke of the carrier to a shoulder P of lever 12 to push said lever for downward movement of presser 42 to charge the press. The levers 11, 12 as will be observed are further provided with shoulders V, P, respectively, whereby they are returned successively to normal positions by direct contact of the carrier in a similar manner to that described for ejector lever 13.

Combined with carrier 52, see Fig. 10, is a motion converting mechanism comprising a double ratchet wheel 14 secured to shaft and provided with a four toothed blank sector section whose terminal tooth 15 is removably secured to the body of the wheel by a suitable fastening means as a clamping screw 15. This wheel has a work outmovement from a set position imparted to it in a step by step manner by forward and rearward strokes of carrier 52 through the medium of spring pressed, alternately actin, push and pull pawls 14a, 151L pivoted to a frame 17 which is slidably engaged with radial guides 17, 17b of carrier 52 and connected with a link 1T pivoted to the adjacent bracket 51 eccentrically to the axis of the carrier.

In the present assigned duty of the ratchet mechanism just described its work out motion commences during a forward stroke of the carrier following an adjustmentof wheel 14 to position its starting tooth 14 in the path of pawl 14a. This tooth, which, as will be observed is one of a continuous series of six teeth allotted to pawl 14, is presented in the path of its pawl by a mechanism, to be later described. which advances wheel 14- during a rearward stroke of carrier and in so doing effects a releasing movement of cam (32 to drop catch 62 for application to the levers 9, 10 during the carriers return stroke and thereby out off the pressing power and effect an opening operation of the press as previously described. The first step in the work out motion, which takes place during` this return or forward stroke of the carrier, is an idle step, while the second, third, fourth and fifth steps are working steps allotted, respectively, to the release of the catches 63, 64, 65 and 6G whose controlling cams 63, 64, G5 and 66 are therefore arranged acsee Fig. 22, mounted on pivot 58 and en- 1 cordingly on shafts 60, 59 to be advanced with wheel 14 to releasing positions in consecutive order and thereby effect connection of the carrier first with lever 13 to eject the product, then with lever to bring about the press closing operation, then with lever 11 to open the charging valve and finally with lever 12 to pass a charge into the compression chamber, all in the manner previously described. When wheel 14 is operated with tcoth 15 its work out movement is nine steps but with this tooth removed, as will be later described, the work out movement terminates with the seventh step. lt will therefore be understood that tooth 15 provides for a continued movement of wheel i4 over that required to complete the closing and resetting and charging operations of the press. This continued movement of wheel 14 effects the initial release of the power applying catch G1 whose cam 61 is so arranged relatively to tooth 15 that the catch is dropped to its first position of release during the application of pawl 15L to this tooth which application will obviously take place on a rearward stroke of carrier Cam G1 is, however, designed to retain catch G1 from dropping to its second position of release during the ninth step which is imparted to wheel 14 by pawl 14"t during a forward stroke of the carrier as indicated in Fig. 10. The rearward st-roke of the carrier which effects the first release of catch (31 also applies it to shoulder L of lever 9 and pushes the lever downwardly one step from the dotted position shown in F-ig. 1 thereby setting valve G for the application of power under normal pressure to chamber 5 and 'shifting lever 23 through medium of the cam piece ^`on link 9 to elevate catch 3 clear of pin 3".

Provision is made for a cut in motion for the second release of catch 61 in variable time following its initial release, whereby the second movement of lever 9 to increase the pressure in power chamber 5 may be delayed for a predetermined time. This provision includes a tine pitch ratchet wheel 18 secured to shaft 60 and provided with a fixed pin 18 which constitutes a coupling member for connecting wheel 14 with master wheel or 32, as will be later understood. ln using master wheel 32, now to be described, tooth 15 is retained in wheel 14 to etlect the initial release of catch 61 while in the use of wheel 32, which I have disclosed in Figs. 24 to 29 inclusive, tooth 15 is removed. Both master wheels are, however, operated by the same drivers in the form of push pawls 30, which are secured to a spring retracted head 31 pivoted to slide frame 1T. This head, as shown, is provided with an arm 31 for angular adjustment to shift pawls 39 to ineffective positions and thereby suspend operation of the master r wheel, as will be later understood.

Master wheel 32, see Figs. 12 to 15, coinprises circular rim sections 33, 34 connected, respectively by single arms 33, 342L with a loose hub 33" and a sleeve 34D, the latter of which has a loose fit on shaft and is releasably connected with rim 33 by a spring pressed bolt 35 mounted on the sleeve and fitting in apertures provided in a continuous series in rim 33, as clearly shown.

The arms 33, 34a, which, as will be observed are, respectively, rearwardly and forwardly of pin 18', constitute coupling parts which serve in conjunction withsaid pin as a lost motion connection between master wheel 32 and wheel 14 of the work out ratchet mechanism. This connection may be adjusted to vary the independent play of wheel 32 on shaft. GOl by releasing bolt 35 from rim 33 and then turning the rim to advance or retract arm 33 relatively to arm 34a.

Secured to rim 33 is a tine pitch ratchet wheel 33C arranged in the path of pawl 39 for short advance idle movements of wheel 32 on shaft 60 and provided with a single tooth 15S which is advanced by such idle movements into the path of pawl 30 for a long advance movement of wheel 32 equivalent to one step of wheel 14. rThis tooth lies adjacent to arm 33a and is therefore broughtunder the action of pawl 30 when pin 18 is engaged by said arm as indicated in Fig. 12 and the wheels 13, 14 are therefore advanced simultaneously with master wheel 32. This advance of wheel 14 sets it for action of its pawls 141, 15a to start the work out motion which continues as previously described until the initial release of power catch 61 of lever 9 is effected. In this connection it will be observed that rim 34 of wheel 32 carries a spring retracted dog 15h which is rearwardly disposed relatively to tooth 15s and is rela-ted to wheel 13 and pawl 30 for effecting further adjustment of wheel 14, following termination of its work out, movement, to effect the secondary release of catch 61. This dog, as shown, is pivoted to a ring 19 normally secured by a set screw 19a but fit-ted for angular movement on rim 34 to advance or retract dog` 15h relatively to tooth 15S as may be desired to regulate the time period during which fluid will be applied under normal pressure in power chamber 5.

theel 32, as shown, is under restraint of a spring drawn friction band which insures it against accidental shifting, as will be readily understood.

Combined with the master wheel driving mechanism is an interrupting device by means of which the cycle time of the press may be prolonged. This device, see Figs.

9 to 11, comprises a throw out cam 70 jour-- naled on slide frame 17 in fixed connection with a four toothed ratchet wheel 71 whose operating pawl 72 is pivoted to arm 5st of carrier 52 and connected with a shifter 73 which is provided with a return stop 73 for connection with a lug T4- on arm 5t to hold the pawl clear of the path of travel of wheel 71.

Cani 70, as shown, consists of a segmental disk positioned at the back face of arm 31 of pawl head 81, see Fig. 7, and suitably designed to be effective against said arm during the initial step imparted to wheel 71 Y b i its awl 72 for aneular outward ad'ustl P s l ment of pawls 30, 30 to ineffective posit-ions and to retain the pawls in such position during the succeeding two steps of the wheel. In this connection it will be observed thatl pawl 72 is provided with an angular head extension which in the released position of the-pawl, as shown, lies in the path of travel of ratchet wheel 71 to engage the same for rotation, as slide frame 17 moves in an inward direction, responsively to for ward swings of the carrier. In this arrangement four forward strokes (or swings) of carrier 52 are required for one complete rotation of cam 70, therefore the pawls 30, 30 will only be in their effective positions during the return stroke of the last reciprocation at which time slide frame 17 is moving outwardly under thrust of link 17 thereby effecting a quadruple time increase for the idle movement of the master wheel.

Commencing on a rearward stroke of carrier 52 with the application of pawl 30 to tooth 15S ot master wheel 32, as indicated in Fig. 12, and assuming that shifter 73 has been engaged with lugs Tt to hold out the interrupting pawl 7 2 an operation is as follows: pawl 30 in its outward movement with frame 17 advances wheel 82 with its arm 33 engaging pin 18 and thereby sets forward ratchet wheel 1st, bringing its starting tooth 14 into the path of pawl 14a, and operates the shafts 60, 5) so that catch is released. The first forward stroke of the carrier applies pawl 1st, turning wheel 14 with shafts 60, 59 an idle step, and applies catch 62 to return the levers 9, 10 thereby closing power valve G and adjusting valve 29 to a position wherein it effects an opening operation of the press in the manner previously described. During the carriers second rearward stroke, in which movement it is represented in Fig. 2 with the press parts in corresponding positions, pawl 15' is applied to wheel 14 and imparts to it a second step e'ecting the release of catch 63 of ejector lever 13. The second forward st-roke applies catch 63 to lever 13 lowering ejector 14 and again applies pawl 14a thereby impartingi a third step to wheel 14 which step releases catch 64. The third rearward stroke retracts ejector leverl by direct contact of the carrier, releases catch 65 bya fourth step of wheel 1-limparted to it by pawl 15u and shifts lever 10 with valve 28, through the medium of catch (it, so as to bring about a closing and resetting operation of the press in the manner previously described. The third forward stroke opens charging valve t() by application of catch (S5 to lever 11 and applies pawl 14 turning wheel 1li a fifth step which releases catch (36. The first half of the fourth rearward stroke lowers presser 42 by application oit catch GG to its lever 12, while during the last half ot' this stroke lever 11 is met and returned by the carrier thereby closing` valve 40. The fourth forward stroke raises presser 42 bydirect contact of the carrier with lever 12, and the fifth rearward stroke effects the initial release of catch ($17 by applicatioi'i of pawl 15n to tooth 15 of wheel 14. and applies this catch against shoulder L of lever E) with. a consequent lowering movement' which adjusts valve G for application of fluid under normal pressure in chamber During the fifth forward stroke pawl 1st is applied in the final step of the work out movement of wheel 1-'1- and advances pin 18', which has previously overtaken arm 3l, to position master wheel 82 for the predetermined independent rotary movement allotted to it. This independent movement which is defined by the degree of clearance between arm 33 and pin 1S is divided into idle turning` movements of the wheel defined by the position occupied b v dog 15 relatively to the tooth 15S. During the sixt-h rearward stroke, carrier 52 starts on a normal or low pressure period in the cycle of operation by the application of pawl 30 to ratchet wheel 33 of master wheel Si) and such application is repeated once .in each reciprocation on the rearward stroke until dogY 15h is brought into the path of pawl 30 when the next rearward stroke of the carrier applies pawl 30' to set dog 15h against and turn wheel 1S thereby effecting the second release of atch 61, and subsequently applying the catch to shoulder H of lever 9 with a consequent further lowering movement. of valve G which places its intake port G in communication with intensier S through regulator T. rl`he application of pawl 30 to dog 15 in connection with wheel 1S advances ratchet wheel 1l a tenth step and sets it so that it is operated an eleventh step by pawl 14 duri-lim` the succeeding forward stroke of the carrier. The second pressure period continues until tooth 15S is returned to the path of pawl 30' by ratchet wheel 33 being operated. by repeated applications of iawl 80` when during` the next rearward stroke of the carrier pawl 30 is applied to tooth 15S and advances it with arm 33a of the master wheel in engagement with pin 18, thereby starting a second operation.

Master wheel 32': see Figs. 2lto 29, which is designed for a variable play connection with pin 18 of wheel 18 Vas in the case of wheel 32, embodies a provision whereby a work in motion may be brought into play, which motion is applied as a timing feature for bringing about the initial release of the power applying'eatch 61 following the charging operation of the press and to thereby withhold the pressing operation for a predetermined time, as may be desired when the material to be pressed requires but a limited time under pressure to produce the desired product and the supply is not forthcoming in sufficient quantity to meet the normal capacit-y of the press. Master wheel 32 comprises circular rim sections 33, 34 connected, respectively, by single arms 33A, 34e with a loose hub 33B and a sleeve 34B, the latter of which fits freely on shaft 60 and is releasably connected with rim 33 by a spring pressed bolt 35', mounted on the sleeve and fitting in apertures provided in a continuous series in rim 33. Rim 33 carries a loose ratchet wheel 33D of the same diameter and pitch as the fixed lratchet wheel 33c of master wheel 32. Ratchet wheel 33D is lixedly connected with a second ratchet wheel 3G for adjusting' movements and provided with an annular groove wherein a loose ring- 33G is mounted. This ring which is releasably connected with wheel 33D, is provided with a stop lug 33E which lies in the path of a fixed lug 18a, provided on rim 33 to effect a forwarding connection between this rim and wheel 33D. Rearwardly of lug 18a is a fixed lug 33T" of wheel 33D which serves to limit advance movement of wheel 33D on rim 33 by engagement with lug 18a. The releasable connection between ring` 33 and wheel 33D, as shown,l consists oi a spring pressed detent 37, pi'voted tothe ring for engagement in suitable notches provided in spaced relation in the rim portion of wheel 33D. as clearly shown.

Mounted on rim section 34 are spring retracted dogs lL 15H similar to the dog 15 of master wheel 32 and likewise related to the long advance pawl 30 and the auxiliary ratchet wheel 18 of shaft G0 for effecting intermediatemovements of ratchet wheel 14 following its work out movement and to simultaneously effect the initial and second release of the power applying` catch 61, as will be later understood. Dogs 15L, lHare provided in fixed connection with companion dogs 36, 36, respectively7 which are related to ratchet wheel 36 and serve under action of pawl 30 to effect adjusting movements of wheel 33D following` its connection with riin 33. These adjusting movements 'follow the independent advance movement of wheel 33D by pawl 30 which movement, as previously intimated, is defined by the spacing of the lugs 331", E, and may be varied or entirely eliminated by first releasing detent 3T of ring-33, and then shifting the ring to advance or retract its lug 33E relatively to lug 331 of wheel 33D. The spacing of the lugs 331, 33E other than to a closed connection with lug 18, determines a timing period in the cycle of operation which will follow the charging operation of the press. In this connection. it will loe observed that ratchet wheel 33D is provided a fixed tooth 14S which, like tooth 15s of master wheel 32, acted upon by pawl 30 to advance ratchet wheel 14 to position its starting tooth 14 in the path of pawl 14a and simultaneously effect the release of the press opening and power cut off catch 62. The dogs 15L, 15H are both disposed to follow tooth 14s with dog 15H occupying a relatively intermediate position. These dogs are mounted on rim 34 for independent adjust ment for variable spacing and for this purpose I pivot the dogs 15L 15H, in fixed connection with their companion dogs 36', 36, on respective slide blocks 19 which, .as shown. have angular connection with rim 34 and are provided with suitable set screws normally set up to impinge said rim. The pivots of these dogs are each provided with a fixed back stop pin, as 19 which normally engages its slide block, as clearly shown.

In substituting master wheel 32 for master wheel 32, tooth 15 of wheel 14 is removed and wheel 32 slipped to place on shaft G0 with its arms 33A, 34A, respectively, rearwardly and forwardly of pin 18. band 75 is then applied to rim section 33 and a similar band 75 applied to t-he loose ratchet wheel 33D. With master wheel 32 substituted for master wheel 32, as just described, and commencing on a rearward stroke of carrier 52 wit-h pawl 30 applied to tooth 14 of wheel 33D and lug 33F against lug 18L and arm 33* against pin 18. as indicated in Fig. 29, an operation is as follows. Pawl 30 in its outward movement with frame 17 advances master wheel 32 in its entirety with arm 33A carrying forward the wheels 18, 14 through the medium of pin 18. thereby bringing tooth 14 into the path of pawl 14a and setting forward the shafts (30, 5f) so that catch (32 is released. The first forward stroke of the carrier applies catch 62 to levers 9, 10 to bring about the press opening and power cut off operations, as previously described and applies pawl 14L to tooth 14 thereby advancing wheel 14 with shafts GO, an idle step, as in the previously described operation with master wheel 32 in use. The pawls 15a, 14u are now applied, to

wheel 14, as in the previously described op- Friction step. The second, third, fourth, and fth step movements imparted to wheel 14 effect release of the catches G3, 64, G and 6G, respectively, and these catches are applied to their respective levers, during successive strokes of the carrier, in identically the same manner as in the previously described operation of wheel 14, whereby ejector 42 is operated, the press closed and reset, and a charge of material passed into chamber 4. During this work out movement of wheel 14, pin 18 overtakes and advances arm 34A together' with the rim sections 34, 33, bringing lug 18a against lug of the connected ring 33G of wheel 33D so that the terminal or seventh step imparted to wheel 14 advances the master wheel in its entirety, as indicated by the arrows in Fig. 25.

During the next rearward stroke of the carrier an independent rotary movement of wheel 33D is commenced by application thereto of pawl 30, which application is repeated on each rearward stroke until lug 331" of this wheel is worked into engagement with lug 18a of rim section 33. The next rearward stroke of the carrier advances the entire master wheel on shaft G() by the application of pawl 30 to wheel 33D as before and dog 15L is thereby presented in the path of pawl 30. The next rearward stroke applies pawl 30 to dog 15L` first connecting it with the auxiliary ratchet wheel 18 and bringing its companion dog 3G into connection with the adjusting wheel 36 of wheel 33D. and then advancing these dogs together with their respective wheels, both rim sections of the master wheel, and ratchet wheel 14. This operation advances wheel 14 an eighth step, supplying the omission of its tooth 15, and advances the entire master wheel a corresponding step. This adjustment of wheel 18 in connection with shaft GO, effects the initial release of the power applying catch 61 so that it is applied dur-- ing the terminal part of this stroke of the carrier to shoulder L of lever 9 to effect the primary application of power to chamber 5. The entire master wheel is now advanced on shaft (i0 by repeated applications of pawl 30 to wheel 38D, during reciprocations of the carrier. bringing forward dog 15H, followed by tooth 14S, by short steps until said dog is presented in the path of pawl 30 when the next rearward stroke applies pawl 30 to dog 15H, connecting it wit-h wheel 18, and its companion dog 3G with wheel 36 and then turns the entire master wheel together with wheel 18, wheel 14 and shaft 60 a step equivalentto one step of wheel 14a. This second out in on wheel 18, effects the secondary release of catch 61 so that it is applied on this stroke of the carrier to shoulder H of lever Sl with a further downward adjustment of valve G, whereby connection is established between its intake 6 and intensifier 8 lug S-BF against lug 18a and arm 33A in engagement with pin 18, thereby releasing catch GQ for the power out ottI and press onenino' onerations and resettino` wheel 14V for a second work out operation- The application of dog 15L to wheel 18, which advances wheel 14. its eighth step, is followed by an application of pawl 14a to wheel 14 during the succeeding forward stroke of the carrier to advance wheel 14 a ninth step, and the application of dog 15H to wheel 18, which advances wheel 14 a tenth step, as in the case of dog 15 of master wheel 32, is followed by an application of pawl 14a which advances wheel 14 its eleventh step.

lf desired to prolong the interval between the charging of the press and the primary application of power, as determined by spacing of the lugs 231", 33E, shifter 73 is manipulated to bring pawl 72 into the path of travel of ratchet wheel 71 of interrupting cam 70. Following the cut in of pawl 15L the shifter can be operated to bring pawl 72 to an ineffective position or the interruption allowed to continue during the stages of low and high pressure.

If desired to cut in on wheel 18 for primary application of power in chamber 5 in the same time sequence as when wheel 14 is operated with its tooth 15, as in the case of master wheel 82, the connection between rim 83 and wheel 33D is closed and dog 15L advanced on rim 34 a degree equivalent to one e'lt'ective stroke of pawl 8O on wheel 33D. This adjustment is eiected by the operator first pressing detent 37 to release ring BSG, as for example with the parts in the relative positions shown in Fig. 25, and then turn ing wheel 33D on rim 33 to bring` lug forward against lug 18;1L and then releasing slide block 19 of dog 15L and advancing it on rim 34 the above described distance. Pin 18 will then be effective in the application of pawl 14a which imparts the seventh step to wheel 14 to position dog 15L in the path of pawl 30', when on the next rearward stroke this pawl will be applied to the dog and advance it in connection with wheel 1S thereby imparting an eighth step to wheel 14 and effecting the initial release of power applying catch 61. If it be desired that the second cut in on wheel 18 for the application of power at increased pressure should occur on the following reciprocation of the carrier, dog 15H is adjusted by first releasing its slide block 19 and then advancing the same to a position wherein this dog will follow dog 151' a degree equivalent to one step of wheel lli. Pawl let"L will then be effective in imparting the ninth step to wheel 14 to advance master wheel 32', through the medium of pin 18, to position dog 15H in the path of pawl 30 for application to wheel 1S to impart the tenth step to wheel 14 and the shafts 60, 59 on the following rearward.

stroke of the carrier and thereby effect the secondary release of the power applying catch 61. The master wheel will then be advanced on shaft 60, by repeated applications of pawl 30 to wheel 33D during reciprocations of the carrier, leaving the high pressure stage in force until arm 33A is brought against pin 18 when tooth 14S will be presented in the path of pawl 30 for operation of the entire master wheel together with the wheels 18, 14 and the shafts 60, 59 to release the power cut off and press opening catch 62 on the next rearward stroke of the carrier.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States of America, is:

1. A press comprisinga reciprocatory compression member, a movably supported pressure member opposing the same forcom` pressing a charge, means for operating said compression member toward said pressure member, and movable means for advancing said compression member with the compressed product.

Q. A press comprising opposing compression and pressure members supported for movement, means for operating said compression member toward said pressure member, and means movable independently of said compression member for operating it and said pressure member to advance and release the product.

3. A press comprising a reciprocatory compression member, a movably supported pressure member at one side of said compressing member, means for operating said compression member toward said pressure member, and other means for operating said compression and pressure members successively.

et. A press comprising reciprocatory pressure members, an intermediate compression member, means for operating said compression member toward one of said pressure members, and means for operating said pressure members in common for opening the compression member and the opposing pres sure member of the press and advancing the product.

5. A press comprising reciprocatory pressure members, an intermediate compression member lying in the path of one of said pressure members, means for operating` said compression member toward the other of said pressure members, means for operating the first named of said pressure members to effect movement of said compression member to advance the product, and means whereby the last named of said pressure members is operated to an open position by and during movement of said first named pressure member.

6. In a press, reciprocatory pressure members connected for movement in common, an intermediate compression member, means whereby power is applied to one of said first members to operate said compression member, and means for reciprocating said first members.

7. A press comprising a compression chams ber, a compression member, a movable back pressure member arranged to communicate its movement to said compression member, a movable pressure member opposing said compression member and connected with said back pressure member, and means for advancing said last member to forward the pressing member with the compressed product.

S. A press comprising pressure members, an intermediate compression member, and means whereby said last member-is operated, said pressure members being movable to advance one thereof from said compression member to thereby open the press and advance the compression member in the direction of its compressing movement wit-h the compressed product.

9. 1n a press, reciprocatory pressure members, means connecting said pressure mem bers, a reciprocatory compression member intermediate said pressure members normally spaced from one thereof and lying in its path of movement, and means for operating said last named pressure member to transmit movement to said compression member.

10. In a press, movable opposing pressure and compression members, means for applying power to said compression member, and means whereby the pressure so applied holds said pressure member from moving.

11. A press comprising reciprocatory pressure members, an intermediate compression member, means for operating said compression member toward one of said pressure members, and means for operating said last named pressure member and said compression member in a common direction with a greater travel of one with respect to the other to thereby increase the space therebetween, and to advance the product.

12. In a press, a compression chamber, a pressure member supported for bodily movement outwardly therefrom, a compression member in said chamber opposed by said pressure member, means for operating said compression member' toward said pressure member, and means whereby said pressure member is moved to increase its spacing relatively to said compressing member prior to the termination of movement of said co`m`= pression member in the direction of its compressing movement.

13. In a press, a compression chamber, a pressure member seated on said chamber and Jforming a head therefor, a reciprocatory compression member in said chamber, means for applying power to said compression; member for operating the same toward said pressure member, and means whereby the pressure so applied holds said pressure member from opening movement.

14. In a press, a compression chamber, opposed pressure and compression members therein, means for applying pressure for moving said compression member, means whereby the pressure so applied simultaneously holds said pressure member to oppose such movement of the compression member, and means for subsequently moving said pressure and compression members to effect an advancement of the compressed product and the opening of the press.

l5. In a press, a compression chamber, opposed reciprocatory pressure and compression members therein, means for apply-V ing power to effect movement of said compression member and simultaneously applying such power for holding said pressure member against opening movement, and means whereby said pressure member is released and said co-mpression member operated to eject the compressed product from said chamber.

16. In a press, a compression chamber, reciprocatory pressure and compression members in said chamber, means for apply ing power for operating said compression member, means whereby the pressure so applied holds said pressure member against movement in one direction, and means for moving said members successively to effect the opening of the press and advancement of the compressed product.

17. In a press, spaced reciprocatory pressuremembers, fluid operative means for reciprocating said pressure members, and a compression member arranged intermediate said pressure members in the path of one thereof for operation by the latter.

18. In a press, reciprocatory pressure members, means connecting said pressure members for simultaneous movement, a reciprocatory compression member intermediate said pressure members normally spaced from one thereof in its path of movement, means for applying' pressure simultaneously to said last named pressure member and said compression member tending to move the same in relatively opposite directions, and means for moving said last named pressure member in the direction of compressing movement of said compressing member.

19. In a press, reciprocatory pressure members, an intermediate compression member, fluid operative means for reciprocating said pressure members, and means for applying pressure between one of said pressure members and said compression member for effecting an advance movement of the latter and an opposite tendency on the former.

20. In a press, reciprocatory pressure members, an intermediate compression member, means for reciprocating said pressure members, and means acting against one of said pressure members for operating said compression member therefrom.

2l. In a liuid operative pre-ss, a compression member, means for applying fluid under pressure to advance said member, and auxiliary means for advancing said member.

9. In a fluid operative press, a compression member, means for applying fluid under pressure to advance said member, and means for releasing the applied fluid and advancing said member.

In a fluid operative press, a compression member, means for applying fluid under pressure to advance said member, fluid operative means for releasing the applied fluid, and means whereby said releasing means effects a'continued movement of said member.

Q4. In a fluid operative press, a compression member, means for applying fluid under pressure to advance said member, and auxiliary fluid operative means for eEecl-ing further advancement of said compression member.

25. In a fluid operative press, a power chamber, an inwardly movable head for said chamber, a compression member advanced by fluid applied in said chamber, a valve in said head, and fluid operative means for advancing and retracting said head operatively connected with said valve.

26. In a fluid operative press, a power chamber, a movable head for said chamber, a compression member advanced by fluid applied in said chamber, and an auxiliary fluid operative means for moving said head.

27. In a fluid operative press, a power chamber, a compression chamber, an inwardly movable head for said power chamber, an outwardly movable head for said second chamber connected with said first head, and a compression member for said second chamber advanced by fluid applied in said power chamber.

28. In a fluid operative press, a power chamber, a compression chamber, an inwardly movable head for said power chamber, an outwardly movable head for said compression chamber connected with said first head, a compression member for said compression chamber operated by fluid applied in said power chamber, and means whereby said compression member is operated by and during movement of said first head.

29. In a fluid operative press, power and compression chambers, inwardly and outwardly movable pressure members associated with said chambers, and an intermediate compression member advanced by fluid applied in said power chamber.

80. In a fluid operative press, a power chamber, an inwardly movable head for said chamber, a compression member advanced by fluid applied in said chamber, and means for moving said head to effect a continued movement of said compression member.

31. In a fluid operative press, a power chamber, an inwardly movable head, a compression member advanced by fluid applied in said chamber against said head, and fluid operative means for moving said head.

32. In a fluid operative press, a power chamber, an inwardly movable head, a compression member advanced by fluid applied in said chamber against said head, fluid o-perative means for advancing and retracting said head, and means whereby said compression member is retracted independently of said head.

83. In a fluid operative press, a power chamber, an inwardly movable head, a compression member advanced by fluid applied in said chamber, fluid operative means for advancing and retracting said head, and releasable connecting means operated by and during movement of' said head for connecting said compression member for movement therewith.

34. In a fluid operative press, a power chamber, an inwardly movable head, a compression member advanced by fluid applied in said chamber, fluid operative means for advancing and retracting said head, and releasable means whereby said compression member is retracted by said head operating means.

35. In a fluid operative press, a power chamber, a movable head, movable means in said chamber advanced by the fluid applied, means for moving said head, and releasable means whereby said fluid advanced means is retracted by said head moving means.

36. In a fluid operative press, a power chamber, a movable head, a valve in said head, movable means in said chamber advanced by the fluid applied, means for moving said head operatively connected with said valve, and means for releasably connecting said fluid advanced means with said head moving means.

87. In a fluid operative press, a. power chamber, an intake valve for said chamber, movable means in said chamber advanced by the fluid applied, means movable into said chamber, means for releasably connecting said last means with said fluid advanced means, and means for operating said valve and said releasable connecting means.

38. In a fluid operative press, power and compression chambers, connected reciprocatory pressure members each related to a respective chamber, a compression member in said compression chamber connected to be advanced toward the opposing pressure member by fluid applied in said power chamber, and fluid operative means operating said pressure members and through one ofthe latter effecting a further advancement of said compression member.

39. In a press, a reciprocatory pressure member, means for reciprocating said pressure member, a compression member' arranged in the path of said pressure member for movement thereby, and a releasable connection set automatically to connect said compression member with said means for return movement with said pressure member.

40. In a press, a reciprocatory pressure member, mea-ns for reciprocating said pressure member, a reciprocatory compression member, a releasable connect-ion between said members, and means for operating` said compression member independently of said pressure member. i

41. In a press, a reoiprocatory member, means for reciprocating said member, a compression member, means for operating said compression member in one direction independent-ly of said first member, and a releasable connection set by and during movement of one of said members for connecting said compression member for its return movement.

42. In a press, a power chamber, reciprocatory pressure and compression members, means for advancing said compression member by fluid applied in said chamber, means for reciprocating said pressure members and through movement of one thereof effect fur- -ther advancement of said compression member, releasable means connect-ing said compression member for return movement by said first means, and means for releasing said compression member.

43. In a press, a power chamber, an inwardly movable head, a compression member advanced by Huid applied in said chainber, means for advancing and retracting said head, means releasably connecting said compression member with said means for return movement thereby, and means automatically operating said last means to its releasing position.

44. In a press, a power chamber, an inwardly movable head, a compression member advanced by fluid applied in said chamber, means for advancing and retracting said head, means releasably connecting said compression member with said means for return movement thereby, and means whereby said last means is automatically operated to alternately connect and disconnect said compression member with said first means.

45. In a press, a compression member, means for applying power to advance said member, and auxiliary means under variable control for advancing said member.

46. In a press, a compression member, means for applying power to advance said member, and auxiliary fluid operative means under control for advancing said member.

47. In a press, a compression member, means for applying power to advance said member, and means under variable control for releasing said compression member from said first means and advancing said member with the compressed product.

48. In a press, a compression chamber, companion members for effecting compression of material in said chamber, means for operating one of said members toward the other, and other means under variable control for moving both of said members to open the same and advance the compressed product.

49. In a press, companion members for effecting' compression of material therebe tween, independent means successively brought into operation for moving one of said members in a single direction, one of said means being under variable control, and means whereby the other of said members is moved out of the path of said first member by the other of said first means.

50. In' a press, opposing movably supported members, means for simultaneously operating one of said members and holding the other to oppose the same, and means under variable control for releasing said first means and said last named member and effecting further movement of said first member.

5l. In a power press, independently movable companion members for eecting compression, automatic means for moving said members simultaneously in one direction controlled to obtain active periods of varying lengths, and means for applying power to move one of said members toward the other.

52. In a po-wer press, independently movable companion members for effecting compression, means for applying power to advance one of said members toward the other, means for automatically terminating such advance, and means under automatic control whereby both of said members are subsequently advanced and then retracted.

53. In a press, a compression member, an auxiliary means for applying pressure to said compression member, means for controlling fluid from a primary source and said auxiliary means for application thereof to said compression member, and means for operating said first means to cut in said auxiliary means subsequently to the subjection of said compression member to a primary pressure.

54. A uid operative press, pressure increasing means connected therewith, a fluid controlling means connected with said press and pressure increasing means, and automatic means for operating said controlling means to cut in said first means at a predetermined time during a pressing operation.

55. A fluid operative press, pressure increasing ireans connected therewith, a fluid controlling means connected with said press and pressure increasing means, and automatic means for operating said controlling means to cut said-first means in and out, said automat-ic means being variable for predetermining the length of time` said first means will be actively employed.

56. In a Huid operative press, a power chamber, a reciprocatory pressure member in said chamber, means for reciprocating said member, a compression member operated by fluid in said chamber, a releasable connection between said members, a power intensifier connected with said power chamber, a controlling means for controlling the establishing of communication between a source of fluid supply and said power chamber and between the latter and said power intensifier, means for operating said controlling means, and means operated by and during movement of said last means fory operating said releasable connection.

57. In a press, power controlling means for effecting a primary and secondary release of power for pressing, a carrier, means for connecting said power controlling means with said carrier for such release of power, and a ratchet mechanism effecting said connections operated by and during movement of said carrier.r

58. In a press, means for controlling power to bring about different stages in a pressing operation, and automatic means for operating said controlling means irrespectively of the pressure applied.

59. In a power press, means for controlling power to bring about different stages in a pressing operation, and automatic means for operating said controlling means irrespectively of the pressure applied, said last means being variable for predetermining the relative duration of said stages.

60. In a press, a carrier supported for movement in relatively opposite directions, a lever, oppositely disposed push catches for said lever mounted on said carrier, and means for effecting operating of' said catches in successive order for connection with said lever.

61. In a press, a carrier supported for movement in relatively opposite directions, a reciprocatory power applying means, oppositely disposed catches for said means mounted on said carrier, and means operated by and during movement of said carrier for operating said catches successively for connecting'the carrier with the power applying means. i

62. In a press, a carrier supported for movement in opposite directions, a reciprocatory power applying means, a plurality of means for connecting said carrier with said power applying means, and means operated by and during movement of said carrier for operating said connecting means in successive order.

63. In a power press, a carrier supported tor movement in relatively opposite directions, a reciprocatory power applying means, means tor connecting said power applying means with said carrier for intermittent continued adjustments, and means operated by and during movements of said carrier tor adjusting said connecting means to eiiect such intermittent adjustments of said power applying means.

64. In a press, an eXpansible presser formed of pivotally supported material engaging sections adjustable laterally of the pathy of the presser and normally inclined outwardly and downwardly in relatively opposite directions, and means tor limiting inward adjustment of said sections.

G5. In a press, means for contro-lling material to be pressed, means for controlling the power tor pressing, and automatic means for effecting adjustments of the said controlling` means successively, said last means being variable for withholding the power application for a predetermined period following release of material to the press.

66. In a press, means for controlling material to be pressed, means for controlling the power for pressing, and automatic means for operating the said controlling means to release material and apply power, said last means being variable for withholding the power application for a predetermined period following release of material to the press.

67. A timing mechanism comprising a normally inactive ratchet mechanism, a second ratchet mechanism for setting said rst mechanismv and connected to be advanced thereby, and an auxiliary ratchet mechanism operated intermittently by said second ratchet mechanism.

68. A timing mechanism comprising a normally inactive ratchet mechanism, a second ratchet mechanism for setting said first mechanism and connected to be advanced thereby, and an auxiliary ratchet mechanism operated intermittently by said second ratchet mechanism and connecting it with said normally inactive mechanism.

69. A timing Vmechanism comprising a carrier supported for movement in relatively opposite directions, a work out ratchet mechanism, a second ratchet mechanism operated by and during movements of said carrier setting said irst ratchet mechanism and advanced thereby, and variable mechanism under control of said setting mechanism for eiiiecting intermediate adjustments of said first mechanism.

70. A timing mechanism comprising a carrier supported" forl movement in relatively opposite directions, a normally inactive ratchet mechanism, a wheel having a variable play connection with said ratchet mechanism, and a second ratchet mechanism including ay driven wheel having a variable play connection with said first wheel.

7l. A timing mechanism comprising carrier supported for movement in relatively opposite directions, a normally inactive ratchet mechanism, a second ratchet mechanism having a variable play connection with said first ratchet mechanism, an auxiliary ratchet wheel, and releasable means operated intermittently by-said second ratchet mechanism and connecting it with said auxiliary wheel. f

72. A timing mechanism comprising a carrier supported for movement in relatively opposite directions, a ratchet mechanism, a second ratchet mechanism having a play connection with said iirst ratchet mecha.- nism, an auxiliary ratchet wheel, and means acted upon intermittently by said second ratchet mechanism and connecting it with said auxiliary wheel. v

73. A timing mechanism comprising a carrier supported for movement `in relatively opposite directions, a normally vinactive ratchet mechanism including ank auxiliary ratchet wheel, a movement transmitting wheel having a play yconnection with said ratchet mechanism, a second ratchet mechanism including a driven wheel having a variable play connection with said tirst wheel, releasable means for connect-ing said last wheel intermittently with said auxiliary wheel adjustably mounted on said transmitting wheel, and driving means acting on said driven wheel and said releasable means;

74. A timing mechanism comprising a work out ratchet mechanism, a second ratchet mechanism starting said first mechanism and advanced thereby, and automatic means releasable at will for interrupting said starting mechanism.

75. A timing mechanism comprising a work out mot-ion mechanism, a work in motion mechanism, and a connecting motion mechanism.

76. A.'- timing mechanism comprising a work out motion mechanism, a work in motion mechanism, and a connecting motion mechanism controlled for operation by said work in motion mechanism.

77. A timing mechanism comprising a 

